CVE-2026-41242
protobufjs compiles protobuf definitions into JavaScript (JS) functions. In versions prior to 8.0.1 and 7.5.5, attackers can inject arbitrar
CVSS
9.8
Critical
EPSS
0.7%
p51
KEV
—
Exploit Today
15
0-100
Published: Apr 18, 2026 · Last modified: Jul 15, 2026 · CWE-94
0.7%EPSS · 30 days0.7%
2026-06-302026-07-17
protobufjs compiles protobuf definitions into JavaScript (JS) functions. In versions prior to 8.0.1 and 7.5.5, attackers can inject arbitrary code in the "type" fields of protobuf definitions, which will then execute during object decoding using that definition. Versions 8.0.1 and 7.5.5 patch the issue.
- github.comhttps://github.com/protobufjs/protobuf.js/commit/535df444ac060243722ac5d672db205e5c531d75
- github.comhttps://github.com/protobufjs/protobuf.js/commit/ff7b2afef8754837cc6dc64c864cd111ab477956
- github.comhttps://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.5.5
- github.comhttps://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v8.0.1
- github.comhttps://github.com/protobufjs/protobuf.js/security/advisories/GHSA-xq3m-2v4x-88gg
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:21338
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:24977
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:26234
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:37275
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-41242
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2459442
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41242.json
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